Enhanced Redox Capacity and Hydrogen Bonding Interactions for Efficient Metal Recovery from Spent Batteries DOI
Chen-Chen Feng,

Xiong-jing OUYANG,

Rui Huang

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 3, 2025

Abstract Green and efficient recycling of critical metals from spent lithium‐ion batteries is great importance. Deep eutectic solvents (DESs) show potential to replace conventional inorganic acids due their eco‐friendly, low‐cost, superior leaching performance. However, the low solid–liquid ratio, high temperature, complex stepwise recovery processes may lead large solvent energy consumption. Herein, a selection principle proposed according enhanced redox capacity abundant hydrogen bonding interactions, which help design novel ternary DESs. The results demonstrate that DESs could disrupt metal–oxygen bonds efficiently reduce high‐valent form low‐valent metal complexes in solution. Besides, water as dilutant can viscosity benefit bonds. As result, achieve high‐metal efficiency 98.65% (Li), 96.92% (Ni), 96.94% (Co), 95.53% (Mn) at relatively temperature (60 °C) ratio ( R S/L = 10), respectively. regenerated cathodes via co‐precipitation methods exhibit excellent electrochemical performance similar commercial cathodes. Finally, economic environmental evaluation entire process shows profitability impact.

Language: Английский

Hierarchical Phosphide-Based Hybrid Anodes for High-Performance Lithium-Ion Batteries DOI
Shanshan Xiao, Chen Yong, Xianggang Zhou

et al.

Nano Letters, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 21, 2025

Transition metal phosphides (TMPs) have emerged as promising anode materials for lithium-ion batteries (LIBs). However, their poor intrinsic conductivity and significant volume changes result in slow redox kinetics structural collapse during cycling, which hinder practical application. Here, a hierarchical hybrid is synthesized by evenly dispersing Ni2P particles with N-doped carbon encapsulation on Co(OH)2 nanosheets (Co(OH)2/Ni2P@N–C). This distinctive structure enhances electron/ion reduces the Li+ transport distance, thereby boosting LIB performance. The Co(OH)2/Ni2P@N–C delivers high reversible capacity of 610 mAh g–1 at 0.05 A exhibits exceptional long-term stability. approach could pave way development high-performance LIBs provide crucial guidance designing high-energy-density anodes based TMPs.

Language: Английский

Citations

1
Recent Advances in Nanostructured Conversion-Type Cathodes: Fluorides and Sulfides DOI Creative Commons
Mobinul Islam,

Md. Shahriar Ahmed,

Sua Yun

et al.

Nanomaterials, Journal Year: 2025, Volume and Issue: 15(6), P. 420 - 420

Published: March 8, 2025

This review paper explores the emerging field of conversion cathode materials, which hold significant promises for advancing performance lithium-ion (LIBs) and lithium–sulfur batteries (LSBs). Traditional materials LIBs, such as lithium cobalt oxide, have reached their limits in terms energy density capacity, driving search alternatives that can meet increasing demands modern technology, including electric vehicles renewable systems. Conversion cathodes operate through a mechanism involving complete redox reactions, transforming into different phases, enables storage more ions results higher theoretical capacities compared to conventional intercalation materials. study examines various metal oxides, sulfides, fluorides, highlighting potential significantly enhance density. Despite advantages, face numerous challenges, poor conductivity, volume changes during cycling, issues with reversibility stability. discusses current nanoengineering strategies employed address these nano structuring, composite formulation, electrolyte optimization. By assessing recent research developments this aims provide comprehensive overview revolutionize contribute future solutions.

Language: Английский

Citations

0
Molecular Design of Electron‐Rich Polyoxometalates Based Clusters Enabling Intelligent Energy Storage DOI Open Access
Chen Wang, Xiaozheng Duan, Jian Shen

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 31, 2025

Abstract The fabrication of molecular cluster‐based intelligent energy storage systems remains a significant challenge due to the intricacies multifunctional integration at level. In this work, low‐valent metal atoms are successfully encapsulated within ɛ ‐type Keggin structures, yielding novel cluster denoted as CuMo 16 . This unique structure displayed characteristic “molybdenum red” coloration, with high degree reduction (76.47%), which played pivotal role in enhancing its electrochemical properties. specialized configuration significantly enhanced multi‐proton‐coupled electron transfer kinetics, enabling efficient and rapid release, up thirteen electrons per molecule. To construct an device, is employed proton‐coupled electron‐active material embedded polyvinyl alcohol (PVA) matrix, resulting flexible, wearable, rechargeable devices. flexible electronics not only demonstrate real‐time human motion detection but also exhibit remarkable performance, reaching peak capacity 194.19 mAh g −1 maintaining 68.2% retention after 2500 cycles. Molecular dynamics simulations reveal that integrating enhances performance electronics, regulation content provides effective strategy for optimizing electronic study lays foundation development systems.

Language: Английский

Citations

0
Upcycling Complex Ion Industrial Wastewater to High-Performance Hybrid Anodes for Lithium-Ion Batteries DOI
Caiyue Xie, Xianggang Zhou, Tianyi Li

et al.

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 116624 - 116624

Published: April 1, 2025

Language: Английский

Citations

0
In situ Ni matrix for kinetic enhancement and Li-F cleavage catalysis enabled high-performance conversion fluoride electrodes DOI
Junshu Wu, C. Wang,

Jiamao Hao

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162966 - 162966

Published: April 1, 2025

Language: Английский

Citations

0
Enhanced Redox Capacity and Hydrogen Bonding Interactions for Efficient Metal Recovery from Spent Batteries DOI
Chen-Chen Feng,

Xiong-jing OUYANG,

Rui Huang

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 3, 2025

Abstract Green and efficient recycling of critical metals from spent lithium‐ion batteries is great importance. Deep eutectic solvents (DESs) show potential to replace conventional inorganic acids due their eco‐friendly, low‐cost, superior leaching performance. However, the low solid–liquid ratio, high temperature, complex stepwise recovery processes may lead large solvent energy consumption. Herein, a selection principle proposed according enhanced redox capacity abundant hydrogen bonding interactions, which help design novel ternary DESs. The results demonstrate that DESs could disrupt metal–oxygen bonds efficiently reduce high‐valent form low‐valent metal complexes in solution. Besides, water as dilutant can viscosity benefit bonds. As result, achieve high‐metal efficiency 98.65% (Li), 96.92% (Ni), 96.94% (Co), 95.53% (Mn) at relatively temperature (60 °C) ratio ( R S/L = 10), respectively. regenerated cathodes via co‐precipitation methods exhibit excellent electrochemical performance similar commercial cathodes. Finally, economic environmental evaluation entire process shows profitability impact.

Language: Английский

Citations

0